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use crate::line_range::{HighlightedLineRanges, LineRanges};
use crate::nonprintable_notation::NonprintableNotation;
#[cfg(feature = "paging")]
use crate::paging::PagingMode;
use crate::style::StyleComponents;
use crate::syntax_mapping::SyntaxMapping;
use crate::wrapping::WrappingMode;
#[derive(Debug, Clone)]
pub enum VisibleLines {
/// Show all lines which are included in the line ranges
Ranges(LineRanges),
#[cfg(feature = "git")]
/// Only show lines surrounding added/deleted/modified lines
DiffContext(usize),
}
impl VisibleLines {
pub fn diff_mode(&self) -> bool {
match self {
Self::Ranges(_) => false,
#[cfg(feature = "git")]
Self::DiffContext(_) => true,
}
}
}
impl Default for VisibleLines {
fn default() -> Self {
VisibleLines::Ranges(LineRanges::default())
}
}
#[derive(Debug, Clone, Default)]
pub struct Config<'a> {
/// The explicitly configured language, if any
pub language: Option<&'a str>,
/// Whether or not to show/replace non-printable characters like space, tab and newline.
pub show_nonprintable: bool,
/// The configured notation for non-printable characters
pub nonprintable_notation: NonprintableNotation,
/// The character width of the terminal
pub term_width: usize,
/// The width of tab characters.
/// Currently, a value of 0 will cause tabs to be passed through without expanding them.
pub tab_width: usize,
/// Whether or not to simply loop through all input (`cat` mode)
pub loop_through: bool,
/// Whether or not the output should be colorized
pub colored_output: bool,
/// Whether or not the output terminal supports true color
pub true_color: bool,
/// Style elements (grid, line numbers, ...)
pub style_components: StyleComponents,
/// If and how text should be wrapped
pub wrapping_mode: WrappingMode,
/// Pager or STDOUT
#[cfg(feature = "paging")]
pub paging_mode: PagingMode,
/// Specifies which lines should be printed
pub visible_lines: VisibleLines,
/// The syntax highlighting theme
pub theme: String,
/// File extension/name mappings
pub syntax_mapping: SyntaxMapping<'a>,
/// Command to start the pager
pub pager: Option<&'a str>,
/// Whether or not to use ANSI italics
pub use_italic_text: bool,
/// Ranges of lines which should be highlighted with a special background color
pub highlighted_lines: HighlightedLineRanges,
/// Whether or not to allow custom assets. If this is false or if custom assets (a.k.a.
/// cached assets) are not available, assets from the binary will be used instead.
pub use_custom_assets: bool,
// Whether or not to use $LESSOPEN if set
#[cfg(feature = "lessopen")]
pub use_lessopen: bool,
// Weather or not to set terminal title when using a pager
pub set_terminal_title: bool,
/// The maximum number of consecutive empty lines to display
pub squeeze_lines: usize,
}
#[cfg(all(feature = "minimal-application", feature = "paging"))]
pub fn get_pager_executable(config_pager: Option<&str>) -> Option<String> {
crate::pager::get_pager(config_pager)
.ok()
.flatten()
.map(|pager| pager.bin)
}
#[test]
fn default_config_should_include_all_lines() {
use crate::line_range::RangeCheckResult;
assert_eq!(LineRanges::default().check(17), RangeCheckResult::InRange);
}
#[test]
fn default_config_should_highlight_no_lines() {
use crate::line_range::RangeCheckResult;
assert_ne!(
Config::default().highlighted_lines.0.check(17),
RangeCheckResult::InRange
);
}
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